Hi all,
Just wanted to explain my experience on how to stop the whole cluster and
change the IPs.
First, we shut down the cluster with this procedure:
1.Stop the clients from using the RBD images/Rados Gateway on this
cluster or any other clients.
2.The cluster must be in healthy state
I'd do it like this:
* create 2 new mons with the new IPs
* update all clients to the 3 new mon IPs
* delete two old mons
* create 1 new mon
* delete the last old mon
I think it's easier to create/delete mons than to change the IP of an
existing mon. This doesn't even incur a downtime for the cli
Hi,
On 12/19/18 8:55 PM, Marcus Müller wrote:
Hi all,
we’re running a ceph hammer cluster with 3 mons and 24 osds (3 same
nodes) and need to migrate all servers to a new datacenter and change
the IPs of the nodes.
I found this tutorial:
http://docs.ceph.com/docs/hammer/rados/operations/add
Hi all,
we’re running a ceph hammer cluster with 3 mons and 24 osds (3 same nodes) and
need to migrate all servers to a new datacenter and change the IPs of the
nodes.
I found this tutorial:
http://docs.ceph.com/docs/hammer/rados/operations/add-or-rm-mons/#changing-a-monitor-s-ip-address-the-
